A turbocharged 2.0-liter diesel engine with 140 hp and 236 lb-ft of torque powers the Beetle TDI. As with the R-Line, buyers can choose between a six-speed manual and a six-speed DSG. Fuel economy
For economy and reliabilty go for fwd 3.0 tdi (204bhp) model. Do same miles than 2.0 177 version with a bit more power too. Under powered 3.0 give reliabilty with movement to remap for more power ect without strain on the setup.
BMW's 6-cylinder engines are very solid and reliable engines from what I've gathered. OTOH, BMW's V8 gassers have been another story. IIRC, the N63 engine is known to be an oil drinker and there's currently an open campaign to correct some known timing chain issues. Also FWIW all BMWs diesel and gasser engines use a timing chain instead of a belt.
The 116 HP turbo diesel engine accelerates the Cee’d to 188 km / h and accelerates from 0-100 km / h in 11.5 seconds and the average fuel consumption is 4.5 l / 100 km. 2.0 CRDi Engine. The 2.0 CRDi diesel engine of the R family, which debuted in 2009, is still receiving a lot of praise. It is a modern, efficient and – importantly The 2.0 Turbocharged Direct Injection (TDI) diesel engine now combined Pumpe Düse (Unit Injector) (PD) technology with 16 valves, while the larger 2.5 TDI V6 diesel was superseded by a 3.0 V6 TDI, offering a 204 PS (150 kW; 201 bhp) model during the year 2005 which was upgraded to a 233 PS (171 kW; 230 bhp) model in 2006. A 2.7 V6 TDI was If you’re after a pure diesel, the E-Class is also available with the 220 d, 300 d and 400 d engines – the most economical of these is the 220 d entry-level model which is capable of up to 57 . 182 279 255 211 50 371 244 188 297

is 2.0 tdi engine good